Finding the Fourth Proportional to 313,916.87, 470,864.88 and 136,424.05
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Solution
The fourth proportional to 313,916.87, 470,864.88 and 136,424.05 is: 204,631.54
Step by Step Solution
- Step 1: Write the proportion equation
313,916.87 : 470,864.88 = 136,424.05 : x - Step 2: Convert to fraction form
313,916.87/470,864.88 = 136,424.05/x - Step 3: Cross multiply
313,916.87x = 470,864.88 × 136,424.05 - Step 4: Simplify right side
313,916.87x = 64,237,293,932.36 - Step 5: Solve for x
x = 64,237,293,932.36/313,916.87 - Step 6: Final answer
x = 204,631.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.